Beschrijving:While circling to land on runway 26, the crew performed a non-typical circling procedure at a lower than published altitude, leading to loss of control consistent with an accelerated stall, and descended into terrain. Whiteout conditions may have contributed.

CAUSES: "While circling to land on runway 26, the aircraft performed a non-typical circling procedure at a lower than published circling altitude, leading to loss of control consistent with an accelerated stall, and descended into terrain before recovery could be completed. Whiteout conditions may have contributed to this occurrence."